According to our records, this business is located at 1501 Barley Mill Rd. in Wilmington (in New Castle County), Delaware 19807, the location GPS coordinates are: 39.7682886 (latitude), -75.6155264 (longitude). Tatnall School Inc is categorized under Private Junior High School (SIC code 8211). Known organization headmaster is Eric Ruosse. Current estimates show that the unit has a sales volume of $9,876,079 and staff of approximately 180 people. You can contact the company by phone at (302) 998-2292.